Multiple to Multiple Transfer

Each row is signed by its own sender, so several wallets can pay several recipients in one pass. Balances are checked against the total each sender is asked to send rather than row by row — a sender appearing several times needs enough for all of them, and a per-row check passes while the batch still fails halfway. Senders holding no native coin are flagged before anything runs, and the send button stays disabled until the plan is actually viable. Balances are checked against the total each sender is asked to send rather than row by row, so a sender appearing several times is caught before anything is sent instead of halfway through. Private keys stay in this page and are never transmitted; use throwaway wallets.